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Add index for event column in log table (#23625)
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gmsantos committed May 11, 2022
1 parent b686678 commit 5d8cda8c5be42c8daaaa904d29a1011833c0c699
Showing 3 changed files with 51 additions and 2 deletions.
@@ -0,0 +1,44 @@
#
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# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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"""Add index for ``event`` column in ``log`` table.
Revision ID: 1de7bc13c950
Revises: b1b348e02d07
Create Date: 2022-05-10 18:18:43.484829
"""

from alembic import op

# revision identifiers, used by Alembic.
revision = '1de7bc13c950'
down_revision = 'b1b348e02d07'
branch_labels = None
depends_on = None
airflow_version = '2.3.1'


def upgrade():
"""Apply Add index for ``event`` column in ``log`` table."""
op.create_index('idx_log_event', 'log', ['event'], unique=False)


def downgrade():
"""Unapply Add index for ``event`` column in ``log`` table."""
op.drop_index('idx_log_event', table_name='log')
@@ -38,7 +38,10 @@ class Log(Base):
owner = Column(String(500))
extra = Column(Text)

__table_args__ = (Index('idx_log_dag', dag_id),)
__table_args__ = (
Index('idx_log_dag', dag_id),
Index('idx_log_event', event),
)

def __init__(self, event, task_instance=None, owner=None, extra=None, **kwargs):
self.dttm = timezone.utcnow()
@@ -25,7 +25,9 @@ Here's the list of all the Database Migrations that are executed via when you ru
.. Beginning of auto-generated table
+---------------------------------+-------------------+-------------+--------------------------------------------------------------+
| ``b1b348e02d07`` (head) | ``75d5ed6c2b43`` | ``2.3.0`` | Update dag.default_view to grid |
| ``1de7bc13c950`` (head) | ``b1b348e02d07`` | ``2.3.1`` | Add index for ``event`` column in ``log`` table. |
+---------------------------------+-------------------+-------------+--------------------------------------------------------------+
| ``b1b348e02d07`` | ``75d5ed6c2b43`` | ``2.3.0`` | Update dag.default_view to grid |
+---------------------------------+-------------------+-------------+--------------------------------------------------------------+
| ``75d5ed6c2b43`` | ``909884dea523`` | ``2.3.0`` | Add map_index to Log. |
+---------------------------------+-------------------+-------------+--------------------------------------------------------------+

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